Non-stop unwinding cutter mechanism
By designing a non-stop unwinding cutter mechanism, and using the cooperation of the pressing plate and the circular knife, efficient cutting and feeding of materials is achieved in the non-stop state, solving the problem of low coil replacement efficiency in the prior art, and significantly improving the coil replacement efficiency.
Patent Information
- Application Number
- CN202510456566.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-12
- Publication Date
- 2025-05-13
AI Technical Summary
In the existing printing machinery technology, the coil replacement efficiency is low, resulting in production interruptions, reduced efficiency and increased energy loss.
A non-stop unwinding cutter mechanism is designed, including a frame, cutting board, pressing board, round knife and driving mechanism. The pressing plate and the cutting board are used in conjunction to form two spaces for the roll to pass through. The circular knife slides on the cutting edge surface and the pressing plate to achieve cutting and feeding of the roll.
It realizes efficient connection between rolling and spare rolling materials without stopping, significantly improving the rolling efficiency, which is far better than the existing technology.
Smart Images
Figure CN119976483A_ABST
Abstract
Description
Technical Field
[0001] The present application belongs to the technical field of printing machinery, and in particular relates to a non-stop unwinding and cutting mechanism. Background Art
[0002] In the field of printing machinery technology, such as in the continuous production scenarios of film, paper, metal foil, etc., when a roll of material is exhausted or the specifications need to be changed, the production line must be stopped to change the roll. This process not only causes production interruption and reduced efficiency, but also increases energy loss and equipment wear due to frequent start and stop of equipment. Therefore, it is necessary to solve the above technical problems. Summary of the invention
[0003] The purpose of the embodiments of the present application is to provide a non-stop unwinding cutter mechanism to solve the technical problem of low roll changing efficiency in the prior art.
[0004] In order to achieve the above-mentioned purpose, the technical solution adopted in the present application is to provide a non-stop unwinding and cutting mechanism, comprising: frame; A cutting board, vertically connected to the frame and having a top end forming a cutting edge surface; A material holding plate, which is arranged on opposite sides of the anvil along the normal direction of the anvil and forms a gap between the anvil for the target coil to pass through, and the material holding plate also partially exceeds the cutting edge surface in the direction perpendicular to the normal of the anvil; A circular knife abuts against the cutting edge surface and forms an annular side wall whose axial direction is perpendicular to the normal direction of the anvil plate, and two circular knives are provided corresponding to the pressing plate; A first driving mechanism is connected to the pressing plate and is used to drive the pressing plate to move closer to or away from the anvil plate along the normal direction of the anvil plate; The second driving mechanism is connected to the circular knife in driving mode and is used to drive the annular side wall to slide on the cutting edge surface and the pressing plate respectively.
[0005] Optionally, the first driving mechanism comprises a flip cylinder hinged on the frame, a connecting plate hinged on the power end of the flip cylinder and a follower block hinged on the connecting plate, the follower block is also swingably hinged on the frame through a joint bearing, and the rotation center axes of the flip cylinder, the connecting plate and the follower block are all arranged in parallel; The pressing plate is connected to the connecting plate and can be driven by the connecting plate to be completely located below the cutting edge surface in the height direction of the anvil plate.
[0006] Optionally, the second driving mechanism comprises a rodless cylinder connected to the frame, a holder connected to the rodless cylinder, and a connecting column detachably connected to the holder; The moving direction of the rodless cylinder is parallel to the anvil plate, and the connecting column is connected to the circular knife.
[0007] Optionally, the second mechanism further comprises a linear rail connected to the frame, a sliding block slidably connected to the linear rail, and a sliding seat connected to the sliding block; The extension direction of the linear rail is parallel to the moving direction of the rodless cylinder, and the sliding seat is connected to the connecting column.
[0008] Optionally, the second driving mechanism further comprises a telescopic plate connected to the sliding seat, a roller rotatably mounted on the telescopic plate, and a knife retracting support plate connected to the frame and close to the end of the anvil board; The circular knife is mounted on the telescopic plate, the axial direction of the roller is parallel to the axial direction of the annular side wall, and the knife retraction plate is arranged on the moving path of the roller and is used to abut against the roller.
[0009] Optionally, the second driving mechanism further comprises a guide rod axially perpendicular to the anvil plate and a spring coaxially sleeved on the guide rod; The guide rod is connected to the telescopic plate and a cavity for accommodating the guide rod is formed on the sliding seat. The telescopic plate is slidably connected to the sliding seat through the guide rod and the two ends of the spring are respectively abutted against the telescopic plate and the sliding seat. A chamfered surface adapted to the roller is formed on the retracting plate and the roller can make the guide rod extend into or withdraw from the cavity when rolling on the chamfered surface.
[0010] Optionally, the second driving mechanism further comprises a support plate connected to the sliding seat; An arc-shaped bayonet for accommodating the roller is formed on the support plate.
[0011] Optionally, the second driving mechanism further comprises knife lifting blocks stacked on both sides of the anvil along the normal direction of the anvil; The knife lifting block is arranged at the end of the anvil board and close to the knife retracting support plate, and the top end of the knife lifting block is not lower than the cutting edge surface in the height direction of the anvil board.
[0012] Optionally, the circular knife is mounted on a knife shaft coaxial with the annular side wall, the knife shaft is fixedly mounted on the telescopic plate, and the second driving mechanism further comprises a disc spring coaxially sleeved on the knife shaft; Two ends of the disc spring are respectively in contact with the circular knife and the telescopic plate.
[0013] Optionally, an inclined slope is formed on the knife lifting block to facilitate the lower end surface of the annular side wall to slide onto the knife lifting block.
[0014] The beneficial effect of the non-stop unwinding and cutting knife mechanism provided by the present application is that, compared with the prior art, in the non-stop unwinding and cutting knife mechanism provided by the present application, the pressing plates arranged on both sides of the anvil board along the normal direction of the anvil board can cooperate with the anvil board to form two gaps for the target coil to pass through, so that when the unwinding coil passes through one of the gaps, the spare coil can be arranged to pass through the gap on the other side and be clamped by the pressing plate and the anvil board under the driving action of the first driving mechanism. Since the pressing plate partially exceeds the cutting edge surface in the direction perpendicular to the normal of the anvil plate, and since the circular knife connected to the second driving mechanism can, under the action of the second driving mechanism, make its annular side wall axially perpendicular to the normal direction of the anvil plate slide on the cutting edge surface and the pressing plate respectively, when the spare coil is coated with glue on the side of the pressing plate away from the spare coil, the circular knife on the other side opposite to the spare coil can cut the unwinding coil by sliding on the cutting edge surface, and slide its annular side wall on the pressing plate corresponding to the spare coil to press the end of the unwinding coil against the glue-coated part of the spare coil, thereby completing the connection operation between the unwinding coil and the spare coil. Therefore, the unwinding cutting knife mechanism provided in the present application can realize the efficient connection between the unwinding coil and the spare coil without stopping the machine, which is conducive to significantly improving the roll changing efficiency, which is far superior to the prior art. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.
[0016] Figure 1 This is a schematic diagram of the overall structure of the non-stop unwinding cutter mechanism in the embodiment of the present application; Figure 2 This is a partial structural front view of the non-stop unwinding cutter mechanism in the embodiment of the present application; Figure 3 It is a schematic diagram of the partial structure of the second driving mechanism in the embodiment of the present application; Figure 4 It is a side view of the partial structure of the second driving mechanism in the embodiment of the present application.
[0017] 10. The reference numerals in the figure are as follows: 101. frame; 102. anvil block; 103. cutting edge surface; 104. pressing plate; 105. circular knife; 106. annular side wall; 107. flip cylinder; 108. connecting plate; 109. follower block; 110. rodless cylinder; 111. holder; 112. connecting column; 113. linear rail; 114. sliding block; 115. sliding seat; 116. telescopic plate; 117. roller; 118. knife retraction plate; 119. guide rod; 120. spring; 121. chamfered surface; 122. support plate; 123. arc-shaped bayonet; 124. knife lifting block; 125. knife shaft; 126. disc spring; 127. inclined slope; 201. unwinding coil; 202. spare coil; 300. spherical bearing. DETAILED DESCRIPTION
[0018] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.
[0019] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.
[0020] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.
[0021] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.
[0022] Please also read Figures 1 to 4 Now, a non-stop unwinding cutting knife mechanism provided in an embodiment of the present application is described. The non-stop unwinding cutting knife mechanism comprises a frame 101, an anvil plate 102, a pressing plate 104, a circular knife 105, a first driving mechanism and a second driving mechanism. Among them: The anvil plate 102 is vertically connected to the frame 101 and a cutting edge surface 103 is formed at the top of the anvil plate 102; a pressing plate 104 is arranged on opposite sides of the anvil plate 102 along the normal direction of the anvil plate 102 and forms a gap with the anvil plate 102 for the target coil to pass through, and the pressing plate 104 also partially exceeds the cutting edge surface 103 in the direction perpendicular to the normal of the anvil plate 102; a circular knife 105 abuts against the cutting edge surface 103 and forms an annular side wall 106 axially perpendicular to the normal direction of the anvil plate 102, and two circular knives 105 are arranged corresponding to the pressing plate 104; a first driving mechanism is transmission-connected to the pressing plate 104 and is used to drive the pressing plate 104 to approach or move away from the anvil plate 102 along the normal direction of the anvil plate 102; a second driving mechanism is transmission-connected to the circular knife 105 and is used to drive the annular side wall 106 to slide on the cutting edge surface 103 and the pressing plate 104 respectively.
[0023] According to the above structure provided in the present embodiment, in the non-stop unwinding cutting knife mechanism provided in the present embodiment, the pressing plates 104 arranged on both sides of the anvil board 102 along the normal direction of the anvil board 102 can cooperate with the anvil board 102 to form two gaps for the target coil to pass through, so that when the unwinding coil 201 passes through one of the gaps, the spare coil 202 can be arranged to pass through the gap on the other side and be clamped by the pressing plate 104 and the anvil board 102 under the driving action of the first driving mechanism. Since the pressing plate 104 partially exceeds the cutting edge surface 103 in the direction perpendicular to the normal of the anvil 102, and since the circular knife 105 connected to the second driving mechanism can make its annular side wall 106 axially perpendicular to the normal direction of the anvil 102 slide on the cutting edge surface 103 and the pressing plate 104 respectively under the action of the second driving mechanism, when the spare coil 202 is coated with glue on the side away from the pressing plate 104, and the glue-coated part is higher than the cutting edge surface 103, since the spare coil 202 itself has the ability to expand, after being clamped by the pressing plate 104 and the anvil 102, the part that is higher than the cutting edge surface 103 and coated with glue will maintain a stable upright state, so that the spare coil 202 can be easily clamped by the pressing plate 104 and the anvil 102. The circular knife 105 on the other side opposite to the coil 202 can cut the unwinding coil 201 by sliding on the cutting blade surface 103, and slide on the pressure plate 104 corresponding to the spare coil 202 through its annular side wall 106 to press the end surface of the unwinding coil 201 against the glue-coated part of the spare coil 202, thereby completing the connection operation between the unwinding coil 201 and the spare coil 202, that is, the material connection is completed while cutting; therefore, the unwinding cutting knife mechanism provided in this embodiment can realize the efficient connection between the unwinding coil 201 and the spare coil 202 without stopping the machine, which is conducive to significantly improving the efficiency of coil changing, which is far superior to the prior art.
[0024] It can be understood that when the printing press, die-cutting or slitting equipment uses this mechanism, since the traction systems of these equipment are equipped with tension control and dynamic storage mechanisms, and since the cutting and connecting processes of this mechanism are very short, the extremely short pause of the coil at the pressing plate 104 caused in this process can be completely compensated by the action of the dynamic storage mechanism, thereby realizing the continuous operation of the printing press, die-cutting or slitting equipment and achieving the purpose of non-stopping.
[0025] In another embodiment of the present application, please refer to Figures 1 to 4 The first driving mechanism includes a flip cylinder 107 hinged on the frame 101, a connecting plate 108 hinged on the power end of the flip cylinder 107, and a follower block 109 hinged on the connecting plate 108. The follower block 109 is also swingably hinged on the frame 101 through a joint bearing 300. The rotation center axes of the flip cylinder 107, the connecting plate 108 and the follower block 109 are all arranged in parallel; the pressing plate 104 is connected to the connecting plate 108 and can be driven by the connecting plate 108 to be completely located below the cutting edge surface 103 in the height direction of the anvil plate 102. According to the above structure provided in this embodiment, the flip cylinder 107 connected to the frame 101 can drive the pressure plate 104 connected to the follower block 109 to flip through the connecting plate 108 and the follower block 109 and make it completely located below the cutting blade surface 103 in the height direction of the anvil plate 102. This can effectively avoid the mechanical interference of the pressure plate 104 on the movement of the circular knife 105, thereby also enabling the non-stop unwinding and cutting knife mechanism in this embodiment to form a higher roll changing efficiency.
[0026] Here, focus on Figure 1 and Figure 2, the rotatable hinge position of the power end of the flip cylinder 107 and the connecting plate 108 is close to the rotatable hinge position of the follower block 109 and the joint bearing 300. In this way, when the flip cylinder 107 retracts, the pressing plate 104, the connecting plate 108, and the following block 109 all rotate in the direction away from the anvil plate 102. When the following block 109 leaves the anvil plate 102 around the joint bearing 300 on the hinge axis of the frame 101 to the maximum swing range, the connecting plate 108 continues to rotate and flip under the drive of the flip cylinder 107 with the following block 109 and the joint bearing 300 as the rotating axis, and finally the pressing plate 104 Flip to the set angle, at this time, the overall position of the pressing plate 104 is lower than the cutting edge surface 103 of the anvil plate 102, so as to avoid interference with the movement of the circular knife 105. It can be understood that the maximum swing range of the follower block 109 can be limited by the limit screws and other methods of the prior art; when the cutting and splicing of the unwinding coil 201 are completed, the circular knife 105 returns to the starting position, and a new spare coil 202 can be re-inserted, and the head of the new spare coil 202 is made higher than the cutting edge surface 103, and then the flip cylinder 107 is extended. At the same time, the pressing plate 104, the connecting plate 108, and the follower block 109 all rotate in the direction close to the anvil board 102; first, the follower block 109 is close to the side wall of the anvil board 102, and the pressing plate 104 continues to be pressed toward the anvil board 102 under the drive of the flip cylinder 107, thereby pressing the spare coil 202 against the side wall of the anvil board 102, completing the preparatory action, and repeating this cycle. Here, the significance of setting the follower block 109 and the spherical bearing 300 is to ensure that the working surface of the pressing plate 104 is parallel to the pressure surface of the anvil board 102 when pressing the spare coil 202.
[0027] In another embodiment of the present application, please refer to Figures 1 to 4 The second driving mechanism includes a rodless cylinder 110 connected to the frame 101, a holder 111 connected to the rodless cylinder 110, and a connecting column 112 detachably connected to the holder 111; the moving direction of the rodless cylinder 110 is parallel to the anvil 102, and the connecting column 112 is connected to the circular knife 105. According to the above structure provided in this embodiment, the rodless cylinder 110 can drive the circular knife 105 to move stably through the connection relationship between the holder 111 and the connecting column 112, so that it is convenient to replace different types of circular knives 105 or replace the old and new circular knives 105, so that the non-stop unwinding and cutting knife mechanism in this embodiment can also form a higher roll changing efficiency.
[0028] In another embodiment of the present application, please refer to Figures 1 to 4The second mechanism also includes a linear rail 113 connected to the frame 101, a sliding block 114 slidably connected to the linear rail 113, and a sliding seat 115 connected to the sliding block 114; the extension direction of the linear rail 113 is parallel to the moving direction of the rodless cylinder 110, and the sliding seat 115 is connected to the connecting column 112. According to the above structure provided in this embodiment, the linear rail 113 connected to the frame 101 can drive the sliding seat 115 and the circular knife 105 connected to the sliding seat 115 to move stably by slidingly cooperating with the sliding block 114, so that the non-stop unwinding cutter mechanism in this embodiment can also form a higher roll changing efficiency.
[0029] In another embodiment of the present application, please refer to Figures 1 to 4 The second driving mechanism also includes a telescopic plate 116 connected to the sliding seat 115, a roller 117 rotatably mounted on the telescopic plate 116, and a knife retracting support plate 118 connected to the frame 101 and close to the end of the anvil board 102; the circular knife 105 is mounted on the telescopic plate 116, the axial direction of the roller 117 is parallel to the axial direction of the annular side wall 106, and the knife retracting support plate 118 is arranged on the moving path of the roller 117 and is used to abut against the roller 117. According to the above structure provided in the present embodiment, the roller 117 rotatably mounted on the telescopic plate 116 can limit the circular knife 105 mounted on the telescopic plate 116 by abutting against the knife retraction plate 118. It can be understood that when the circular knife 105 completes the cutting work and retreats under the drive of the rodless cylinder 110, the circular knife 105 also withdraws from the area where the cutting edge surface 103 is located under the action of the knife retraction plate 118, thereby avoiding long-term contact between the circular knife 105 and the cutting edge surface 103 during non-working period, which is beneficial to extending the service life of both; at the same time, it can also prevent the telescopic plate 116 from separating and escaping from the sliding seat 115 in its moving direction, thereby ensuring the reliability of the entire mechanism.
[0030] In another embodiment of the present application, please refer to Figures 1 to 4, the second driving mechanism also includes a guide rod 119 axially perpendicular to the anvil plate 102 and a spring 120 coaxially sleeved on the guide rod 119; the guide rod 119 is connected to the telescopic plate 116 and a cavity (not shown in the drawings) for accommodating the guide rod 119 is formed on the sliding seat 115, the telescopic plate 116 is slidably connected to the sliding seat 115 through the guide rod 119 and the two ends of the spring 120 abut against the telescopic plate 116 and the sliding seat 115 respectively, and a chamfered surface 121 adapted to the roller 117 is formed on the retracting plate 118, and the roller 117 can make the guide rod 119 extend into or withdraw from the cavity when rolling on the chamfered surface 121. According to the above structure provided in this embodiment, the chamfered surface 121 formed on the retracting plate 118 can drive the guide rod 119 to extend into or withdraw from the cavity formed on the sliding seat 115 by abutting against the roller 117, so that the telescopic plate 116 and the sliding seat 115 can stably approach or move away from each other. Since the guide rod 119 is perpendicular to the anvil plate 102, the circular knife 105 connected to the telescopic plate 116 can approach or move away from the anvil plate 102 along the axial direction of the guide rod 119, that is, the circular knife 105 can smoothly and stably exit or enter the cutting edge surface 103, and the annular side wall 106 can leave or roll against the corresponding pressing plate 104, thereby facilitating the completion of roll changing or cutting and splicing, and enabling the non-stop unwinding and cutting knife mechanism in this embodiment to form a higher roll changing efficiency.
[0031] In another embodiment of the present application, please refer to Figures 1 to 4 The second driving mechanism further includes a support plate 122 connected to the sliding seat 115; the support plate 122 is formed with an arc-shaped bayonet 123 for accommodating the roller 117. According to the above structure provided in this embodiment, the arc-shaped bayonet 123 formed on the support plate 122 can maintain a stable relative position relationship between the telescopic plate 116 and the sliding seat 115 by accommodating the roller 117, so that the non-stop unwinding cutter mechanism in this embodiment can also achieve a higher roll-changing efficiency.
[0032] In another embodiment of the present application, please refer to Figures 1 to 4 , the second driving mechanism also includes knife lifting blocks 124 stacked on both sides of the anvil board 102 along the normal direction of the anvil board 102; the knife lifting blocks 124 are arranged at the end of the anvil board 102 and close to the knife retracting support plate 118, and the top of the knife lifting blocks 124 is not lower than the cutting edge surface 103 in the height direction of the anvil board 102. According to the above structure provided in this embodiment, the knife lifting blocks 124 stacked and connected on both sides of the anvil board 102 can be used to form a stable support for the circular knife 105 in the process of the circular knife 105 moving away from the anvil board 102, so that the circular knife 105 can always stably slide on the cutting edge surface 103 of the anvil board 102, ensuring that the circular knife 105 can reliably exit or enter the cutting edge surface 103, which can also enable the non-stop unwinding cutting knife mechanism in this embodiment to form a higher roll changing efficiency.
[0033] In another embodiment of the present application, please refer to Figures 1 to 4 The circular knife 105 is mounted on a knife shaft 125 coaxial with the annular side wall 106, and the knife shaft 125 is fixedly mounted on the telescopic plate 116. The second driving mechanism also includes a disc spring 126 coaxially sleeved on the knife shaft 125; the two ends of the disc spring 126 are respectively abutted against the circular knife 105 and the telescopic plate 116. According to the above structure provided in this embodiment, the disc spring 126 arranged between the circular knife 105 and the telescopic plate 116 can make the axial end face of the circular knife 105 always closely abut against the cutting edge surface 103 of the anvil 102 during the cutting operation to cooperate with the cutting edge surface 103 to form a shearing pair, so that even if the circular knife 105 or the cutting edge surface 103 is worn during long-term use, it can still stably cut the unwinding coil 201, so that the non-stop unwinding cutting knife mechanism in this embodiment can also form a higher coil changing efficiency and reliability.
[0034] In another embodiment of the present application, please refer to Figures 1 to 4 The knife lifting block 124 forms an inclined slope 127 that facilitates the lower end surface of the annular side wall 106 to slide onto the knife lifting block 124. According to the above structure provided in this embodiment, the inclined slope 127 formed on the knife lifting block 124 can make the circular knife 105 slide onto the knife lifting block 124 more stably, that is, the circular knife 105 is smooth and smooth during the process of exiting or entering the cutting edge surface 103, avoiding the knife hitting phenomenon, ensuring the reliability of the entire mechanism, and also making the non-stop unwinding cutting knife mechanism in this embodiment form a higher roll changing efficiency.
[0035] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.
Claims
1. A non-stop unwinding cutting mechanism, characterized in that: include: Frame (101); A cutting board (102) vertically connected to the frame (101) and having a cutting edge surface (103) formed at the top of the cutting board (102); A material holding plate (104) is arranged on opposite sides of the anvil (102) along the normal direction of the anvil (102) and forms a gap between the anvil (102) for the target coil to pass through, and the material holding plate (104) also partially exceeds the cutting edge surface (103) in a direction perpendicular to the normal direction of the anvil (102); A circular knife (105) abuts against the cutting edge surface (103) and forms an annular side wall (106) axially perpendicular to the normal direction of the anvil plate (102), and two circular knives (105) are provided corresponding to the pressing plate (104); A first driving mechanism, which is in driving connection with the pressing plate (104) and is used to drive the pressing plate (104) to move closer to or farther away from the anvil plate (102) along a normal direction of the anvil plate (102); The second driving mechanism is drivingly connected to the circular knife (105) and is used to drive the annular side wall (106) to slide on the cutting edge surface (103) and the pressing plate (104) respectively.
2. The non-stop unwinding cutting mechanism according to claim 1, characterized in that: The first driving mechanism comprises a tilting cylinder (107) hinged on the frame (101), a connecting plate (108) hinged on the power end of the tilting cylinder (107), and a follower block (109) hinged on the connecting plate (108); the follower block (109) is also pivotably hinged on the frame (101) via a joint bearing (300); and the rotation center axes of the tilting cylinder (107), the connecting plate (108) and the follower block (109) are all arranged in parallel; The pressing plate (104) is connected to the connecting plate (108) and can be driven by the connecting plate (108) to be completely located below the cutting edge surface (103) in the height direction of the anvil plate (102).
3. The non-stop unwinding cutting mechanism according to claim 1 or 2, characterized in that: The second driving mechanism comprises a rodless cylinder (110) connected to the frame (101), a clamping seat (111) connected to the rodless cylinder (110), and a connecting column (112) detachably clamped to the clamping seat (111); The moving direction of the rodless cylinder (110) is parallel to the anvil (102), and the connecting column (112) is connected to the circular knife (105).
4. The non-stop unwinding cutting mechanism according to claim 3, characterized in that: The second mechanism further comprises a linear rail (113) connected to the frame (101), a sliding block (114) slidably connected to the linear rail (113), and a sliding seat (115) connected to the sliding block (114); The extension direction of the linear rail (113) is parallel to the moving direction of the rodless cylinder (110), and the sliding seat (115) is connected to the connecting column (112).
5. The non-stop unwinding cutting mechanism according to claim 4, characterized in that: The second driving mechanism further comprises a telescopic plate (116) connected to the sliding seat (115), a roller (117) rotatably mounted on the telescopic plate (116), and a knife retracting support plate (118) connected to the frame (101) and close to the end of the anvil (102); The circular knife (105) is mounted on the telescopic plate (116), the axial direction of the roller (117) is parallel to the axial direction of the annular side wall (106), and the knife retraction plate (118) is arranged on the moving path of the roller (117) and is used to abut against the roller (117).
6. The non-stop unwinding cutting mechanism according to claim 5, characterized in that: The second driving mechanism further comprises a guide rod (119) axially perpendicular to the anvil plate (102) and a spring (120) coaxially sleeved on the guide rod (119); The guide rod (119) is connected to the telescopic plate (116) and a cavity for accommodating the guide rod (119) is formed on the sliding seat (115); the telescopic plate (116) is slidably connected to the sliding seat (115) via the guide rod (119) and two ends of the spring (120) respectively abut against the telescopic plate (116) and the sliding seat (115); a chamfered surface (121) adapted to the roller (117) is formed on the tool retracting support plate (118) and the roller (117) can make the guide rod (119) extend into or withdraw from the cavity when rolling on the chamfered surface (121).
7. The non-stop unwinding cutting mechanism according to claim 6, characterized in that: The second driving mechanism further comprises a support plate (122) connected to the sliding seat (115); An arc-shaped bayonet (123) for accommodating the roller (117) is formed on the support plate (122).
8. The non-stop unwinding cutting mechanism according to claim 6, characterized in that: The second driving mechanism further comprises knife lifting blocks (124) stacked on both sides of the chopping board (102) along the normal direction of the chopping board (102); The knife lifting block (124) is arranged at the end of the cutting board (102) and close to the knife retracting support plate (118), and the top end of the knife lifting block (124) is not lower than the cutting edge surface (103) in the height direction of the cutting board (102).
9. The non-stop unwinding cutting mechanism according to claim 8, characterized in that: The circular knife (105) is mounted on a knife shaft (125) coaxial with the annular side wall (106); the knife shaft (125) is fixedly mounted on the telescopic plate (116); the second driving mechanism further comprises a disc spring (126) coaxially sleeved on the knife shaft (125); Two ends of the disc spring (126) respectively abut against the circular knife (105) and the telescopic plate (116).
10. The non-stop unwinding cutting mechanism according to claim 9, characterized in that: The knife lifting block (124) is formed with an inclined slope (127) that facilitates the lower end surface of the annular side wall (106) to slide onto the knife lifting block (124).